Is pain under the armpit normal before a period? I have never had this before, everytime I move my arm it hurts severely and now it is stinging

My boobs are usually sore before my period, it feels like I cut my armpit with a razor but there is nothing there.

I have had unprotected intercourse when I was supposedly ovulating (according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>) but in my whole 10+ years of having a period I have never had armpit pain come with it